<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区域-->
    <el-card class="box-card">
      <!--搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query" clearable @clear="getuserlist">
            <el-button slot="append"
                       icon="el-icon-search" @click="getuserlist"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!--用户列表区域-->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot:default="scope">
            <el-switch
              v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <template v-slot:default="scope">
            <!--修改按钮-->
            <el-button type="primary" round icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)">
            </el-button>
            <!--删除按钮-->
            <el-button type="danger" round icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)">
            </el-button>
            <!--分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" round icon="el-icon-setting" size="mini"
                         @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!--分页区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

    <!--添加用户的对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed">
      <!--内容主主体区域-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="editForm.email" prop="email"></el-input>
        </el-form-item>
        <el-form-item label="手机">
          <el-input v-model="editForm.mobile" prop="mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>

    <!--分配角色的对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed">
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的用户: {{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      //验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) {
          //合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }
      //验证手机的规则
      var checkMobile = (rule, value, cb) => {
        //验证手机号的规则
        const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          //合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }
      return {
        //获取用户列表的参数对象
        queryInfo: {
          query: '',
          //当前的页数
          pagenum: 1,
          //当前每月显示多少条数据
          pagesize: 2
        },
        userlist: [],
        total: 0,
        //控制添加用户对话框的显示和隐藏
        addDialogVisible: false,
        //添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        //添加表单的验证规则对象
        addFormRules: {
          username: [
            {required: true, message: '请输入用户名', trigger: 'blur'},
            {min: 3, max: 10, message: '用户名长度在 3 到 10 个字符', trigger: 'blur'}
          ],
          password: [
            {required: true, message: '请输入密码', trigger: 'blur'},
            {min: 6, max: 15, message: '密码长度在 6 到 15 个字符', trigger: 'blur'}
          ],
          email: [
            {required: true, message: '请输入邮箱', trigger: 'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true, message: '请输入手机', trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]
        },
        //控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        //查询到的用户信息对象
        editForm: {},
        //修改表单的验证规则对象
        editFormRules: {
          email: [
            {required: true, message: '请输入邮箱', trigger: 'blur'},
            {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true, message: '请输入手机', trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]
        },
        //控制分配角色对话框的显示与隐藏
        setRoleDialogVisible: false,
        //需要被分配角色的用户信息
        userInfo: {},
        //所有角色的数据列表
        rolesList: [],
        //已选中的角色id值
        selectedRoleId: ''
      }
    },
    created() {
      this.getuserlist()
    },
    methods: {
      async getuserlist() {
        const {data: res} = await this.$http.get('users', {params: this.queryInfo})
        if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
        this.userlist = res.data.users
        this.total = res.data.total
        console.log(res)
      },
      //监听pagesize改变的事件
      handleSizeChange(newSize) {
        console.log(newSize)
        this.queryInfo.pagesize = newSize
        this.getuserlist()
      },
      //监听页码值改变的事件
      handleCurrentChange(newPage) {
        console.log(newPage)
        this.queryInfo.pagesize = newPage
        this.getuserlist()
      },
      //监听switch开关状态的改变
      async userStateChanged(userinfo) {
        console.log(userinfo)
        const {data: res} = await this.$http.put('users/' + userinfo.id +
          '/state/' + userinfo.mg_state)
        if (res.meta.status !== 200) {
          userinfo.mg
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
      },
      //监听添加用户对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      //点击按钮，添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          //可以发起添加用户的网络请求
          const {data: res} = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败')
          }
          this.$message.success('添加用户成功')
          //隐藏添加用户的对话框
          this.addDialogVisible = false
          //重新获取用户列表
          this.getuserlist()
        })
      },
      //展示编辑用户的对话框
      async showEditDialog(id) {
        // console.log(id)
        const {data: res} = await this.$http.get('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('查询数据失败')
        }
        this.editForm = res.data
        this.editDialogVisible = true
      },
      //监听修改用户对话框的关闭事件
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      //修改用户信息并提交
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          console.log(valid)
          if (!valid) return
          //发起修改用户信息的数据请求
          const {data: res} = await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })

          if (res.meta.status !== 200) {
            return this.$message.error('更新用户信息失败')
          }

          //关闭对话框
          this.editDialogVisible = false
          //刷新数据列表
          this.getuserlist()
          //提示修改成功
          this.$message.success('更新用户信息成功')
        })
      },
      //根据id删除对应的用户信息
      async removeUserById(id) {
        //弹窗询问用户是否删除数据
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }
        ).catch(err => err)
        //如果用户确认删除，则返回值为字符串 confirm
        //如果用户取消了删除，则返回值为字符串 cancel
        if (confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const {data: res} = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$gmessage.error('删除用户失败')
        }
        this.$message.success('删除用户成功')
        this.getuserlist()
      },
      //展示分配角色的对话框
      async setRole(userInfo) {
        this.userInfo = userInfo
        //在展示对话框之前获取角色列表
        const {data: res} = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败')
        }

        this.rolesList = res.data

        this.setRoleDialogVisible = true
      },
      //点击按钮，分配角色
      async saveRoleInfo() {
        if (!this.selectedRoleId) {
          return this.$message.error('请选择要分配的角色')
        }

        const {data: res} = await this.$http.put('users/' + this.userInfo.id + '/role',
          {
            rid: this.selectedRoleId
          })

        if (res.meta.status !== 200) {
          return this.$message.error('更新角色失败')
        }

        this.$message.success('更新角色成功')
        this.getuserlist()
        this.setRoleDialogVisible = false
      },
      //监听分配角色对话框的关闭事件
      setRoleDialogClosed() {
        this.selectedRoleId = ''
        this.userInfo = {}
      }
    }

  }
</script>

<style lang="less" scoped>

</style>
